title: A low-residue breakfast improves patient tolerance without impacting quality of low-volume colon cleansing prior to colonoscopy: a randomized trial.
abstract: OBJECTIVE
  We compared the efficacy and patient tolerance of two dietary regimens used as an adjunct to standard bowel cleansing in preparation for elective colonoscopy.
  
  
  METHODS
  Our prospective, randomized, single-blind, controlled, noninferiority trial compared two dietary regimens administered the day before colonoscopy. Subjects received low-volume bowel preparation. The primary outcome was efficacy of colon cleansing, rated by the Ottawa bowel preparation scale (OBPS). Patient acceptance of the assigned dietary regimen was assessed as a secondary outcome.
  
  
  RESULTS
  The mean OBPS score for the standard clear-fluid diet group was 4.47, compared with 4.62 for the low-residue breakfast group, meeting criteria for noninferiority. The groups reported similar mean intensity of hunger on a visual analog hunger scale. However, overall satisfaction was higher with the low-residue diet than with the clear-fluid diet.
  
  
  CONCLUSIONS
  A low-residue breakfast on the day before elective colonoscopy does not compromise the overall quality of bowel preparation as compared with a standard clear-fluid diet and is likely to be preferred by patients.
authors.affiliation: Gastrointestinal Diseases Research Unit, Queen's University, Kingston, Ontario, Canada.
authors.forename: Andrea
authors.initials: A
authors.lastname: Melicharkova
authors.forename: Jennifer
authors.initials: J
authors.lastname: Flemming
authors.forename: Stephen
authors.initials: S
authors.lastname: Vanner
authors.forename: Lawrence
authors.initials: L
authors.lastname: Hookey
mesh_terms: D000368:Aged; D002400:Cathartics / Q000627:therapeutic use*; D003113:Colonoscopy / Q000379:methods*; D004032:Diet / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D016037:Single-Blind Method; D016896:Treatment Outcome
chemical_list: D002400:Cathartics